Tube and hinge for loose-leaf binders



. Aug. 11, 1925.

. R. EGELAND TUBE AND HINGE FOR LOOSE LEAF 'BINDERS INVENTOR Filed March16, 1925 Patented Aug. 11, 19 25.

PA'r'r ries.

Rncron EGELAND, or CHICAGO, ILLINOIS.

TUBE AND HINGE FOB LOOSE-LEAF BINDER-S.

Application filed. March 16, 1925. Serial No. 15,908.

To all whom it may concern:

Be it known that I, Rno'ron EGELAND, a citizen of the United States, anda resident of the city of Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements in a Tubeand Hinge for Loose-Leaf Binders; and I do hereby declare that thefollowing is a. full, clear, and exact description of the same,reference being had to the accompanying drawings, and to the. numeralsof reference marked thereon, which form a part of this specification.

This invention relates to, improvements in loose leaf sectional or solidpost binders, of the metal or piano hinged. type and has among itsvarious objects the construction of a metal hinged post binder, whichcan be manufactured cheaply and will withstand the rough usage requiredof metal hinged binders.

It has been found by manufacturers that the piano hinged binder is themost durable loose leaf binder that can be made for universal use, butthe cost of its manufacture makes the common use of such bindersprohibitive.

It has therefore been the object of the inventor to design a binderwhich will have all the desirable features embodied in a. piano hingedbinder but whose cost of material and manufacture would be appreci ablylowered by elimination of waste in metal, covering material and labor.

The primary object of my invention is to provide a loose hinge eye whichis inserted in a slot in ends of each metal tube whereby said hinge eyecan be inserted in ends of tubes after said tubes have been bound orcovered, said hinge eye to be held rigidly in place by a metal end capor plug and by slot cut in hinge eye, said hinge eye to coincide or fitwith cover hinge eye and to be held in place by inserting rod throughhinge eyes or metals and covers.

In the accompanying drawings which illustrate a preferred embodiment ofthis invention and in which similar reference numerals refer to samefeatures in the different views:

Figure 1 is a top plan view of a binder involving this invention.

Figure 2 is an enlarged plan View of one of the tubular clampingmembers.

Figure 3 is an enlarged sectional View up- 011 line 33 of F igure-2.

. Figure 4: is a perspective View of one of the bearings or loose hingeeye members.

Figure 5 is an enlarged sectional View upon line 55 in .F jgure 3.

The binder as illustrated, to which my invention applies consists of apair of covers 1 having clamping members 2 hinged to the binding edgesthereof; one of these clamping members has a pair of posts which areadapted to be adjustably locked in apertures in the other clampingmember.

Each clamping member 2 is formed from a rectangular sheet of metal whichis bent into a flattubular form, the edges being brought together on theside opposite from that in whichl propose to cut a slot for theinsertion of the hinge eye as shown in Fig ure 3.

The hinge eyes or bearings 4 are separately formed from a rectangularpiece of metal which is bent to provide the eye or bearing 4 withoppositely extending flanges l" shaped to fit the flat tubular form 2 asillustrated in Figure 3. These hinge eyes or bearings are slotted in theflanges as shown in Figure 4 indicated as 4 to prevent any verticalmotion as shown in the. sectional view Figure 5.

Figures 3 and 5 show clearly how the hinge eye or bearing is inserted inthe slot of the tubular metal and held rigidly in place by the slot 4?and the metal end cap or plug 6 which is given a tight friction fit.

It is of course, easily understood, that the hinge eyes or bearingsserve to hinge the covers to the clamping members by means of a rod asis well known to the trade.

The operations as outlined above can be completed after the covers andclamping members have been covered and finished by the binder, makingthe Work to complete same a simple assembling operation.

The foregoing detailed description has been given for clearness ofunderstanding and no unnecessary limitations should be understoodtherefrom; but the claims should be construed as broadly as permissiblein view of the prior art.

What I regard as new, and desire to secure by Letters Patent, is

1. In a loose leaf bi/ider, a hollow clamping member formed from arectangular piece of metal with a slot cut in the side opposite to itsmeeting edges, a hinge eye or bearing with a cylindrical portion, a webportion to fit said slot in clamping member, two flanges to fit innersurface of clamping member and a metal end plug or cap to hold hinge eyerigidly in place.

2. A clamping member for a loose leaf binder consisting of a flattubular metal member having a slot cut in each end in the side oppositethe meeting edges, hinge eyes or bearings, each having a cylindricalportion, a web portion to fit said slots in clamping member, two flangesto fit inner surface of clamping member and metal end caps or plugs tohold hinge eyes rigidly in place.

3. A. hinge eye or hearing for a slotted tubular clamping member formedfrom a rectangular piece of metal with a cylindrical portion in saidhinge eye to receive a hinge rod, a Web portion to fit slot in clampingmember and a longitudinal notch in said Web portion to fit tubular metalmember and extend beyond slotted portion of said tubular metal member toprevent vertical motion, and two flanges to fit inner surface of tubularclamping member.

47. A clamping member for a loose leaf binder with rectangular slots ineach end in the side opposite the meeting edges of said clamping memberfor inserting hinge eyes, each having a cylindrical portion a webportion with a longitudinal slot in said web portion ,to preventvertical motion two flanges shaped to fit inner surface of clampingmember and metal end caps or plugs to hold said hinge eyes in place toform a rigid hinged clamping member connection for a loose leaf binder.

In testimony whereof I aflix my signature.

RECTOR EGELAND.

